[SunkenCiv]

Maybe he had an unfortunate accident — no soft tissues or their outline have been preserved. OTOH, poofs have been found in all known societies...

[ApplegateRanch]

Captive, caponized made a eunuch-slave, who later gained some measure of honor, so was buried instead of simply tossed on the midden heap is another possibility. At least the experts have jumped all over the press for misrepresenting the presented findings.